<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8" />
		<title>demo</title>
	</head>
	<body>
		<script type="text/javascript" >

			function extend (){
				function VueComponent(){}
				return VueComponent
			}

			let Person = extend({}) //得到了VueComponent

			let App = extend({}) //得到了VueComponent

			console.log(Person)
			console.log(App)

			console.log(Person === App)

		</script>
	</body>
</html>